Trade-offs, individual differences, and misunderstandings about evolutionary psychology

Replies to comments on Evolutionary psychology: Controversies, questions, prospects, and limitations (see record 2010-02208-001) by Confer et al. The purpose of which was to clarify the logic of evolutionary psychology and clear up some of the more common misunderstandings about it. In this response, we address the key points raised by the commentators.     

The relationship between anxiety sensitivity and latent symptoms of emotional problems: A structural equation modeling approach

A large body of research suggests that common and specific psychopathology dimensions underlie the symptoms that occur within mood and anxiety disorders. As of yet, it is unclear precisely how the facets of Anxiety Sensitivity (AS), or fear of the symptoms of fear and anxiety, relate to these latent factors. Using data from 606 adolescents participating in the baseline phase of a longitudinal study on risk factors for emotional disorders, we modeled the facets of AS as measured by the Anxiety Sensitivity Index-Expanded Form (ASI-X) and related these facets to a hierarchical model of latent symptoms of psychological distress. Results suggest that one facet of AS is associated with a broad General Distress factor underlying symptoms of most emotional disorders while others relate to intermediate-level and conceptually-meaningful narrow factors representing aspects of psychological distress specific to particular emotional disorders.     

The Real-Time Processing of Sluiced Sentences

Ellipsis refers to an element that is absent from the input but whose meaning can nonetheless be recovered from context. In this cross-modal priming study, we examined the online processing of Sluicing, an ellipsis whose antecedent is an entire clause: The handyman threw a book to the programmer but I don’t know which book the handyman threw to the programmer_ellipsis. To understand such an elliptical construction, the listener arguably must ‘fill in’ the missing material (“the handyman threw___ to the programmer”) based on that which occurs in the antecedent clause. We aimed to determine the point in time in which reconstruction of the sluiced sentence is attempted and whether such a complex antecedent is re-accessed by the ellipsis. Out of the two antecedent constituents for which we probed, only the Object (programmer) was found active in the elliptical clause, confirming that an antecedent is attributed to the sluice in real time. Possible reasons for the non-observation of the Subject (handyman) are considered. We also suggest that ellipses are detected earlier in coordinated than subordinated sentences.     

FDG-PET Analysis and Findings in Amnesia Resulting From Hypoxia

The assumptions underlying neuroimaging, and problems in its analysis and interpretation, are commonly underestimated in neuropsychology. The ways in which fluoro-deoxy-glucose (FDG) positron emission tomography (PET) data can be analysed are discussed. PET findings from four patients who had suffered severe amnesia, following episodes of acute hypoxia, are presented. These patients had shown evidence of medial temporal (hippocampal and parahippocampal) atrophy on MRI brain scans. The PET data were analysed in several different ways. The converging findings were that the patients showed bilateral thalamic hypometabolism, and there was also evidence of retrosplenial hypometabolism bilaterally. Cognitively, these patients performed most like other patients with medial temporal lesions, but the results indicate that structural lesions can have distal metabolic effects on structures elsewhere. These findings are interpreted in the light of neuroanatomical observations concerning parallel projections between medial temporal lobe structures and the thalamus, some of which pass via the retrosplenium.     

The Paradoxical Place of Enactment in Psychoanalysis: Introduction

Ringstrom's “comparison of relational psychoanalysis and intersubjective systems theory” exhibits a category mistake that renders the core of his argument logically incoherent.     

“Living Memory”: Discussion of Avishai Margalit's “Nostalgia”

Avishai Margalit raises questions about how memory can be a moral and an ethical concern, and in this commentary on “Nostalgia,” Aron expands on these themes and examines the place of memory in psychoanalysis and in Judaism. The study of memory and of mind are inseparable. At its best, psychoanalysis does not contrast thoughts and actions, inner and outer, memory and motor action, intrapsychic mental life and interpersonal external behavior as simple dichotomous terms but rather views these as mutually defining transformations, different views of a single complex reality. Conceived in this way, memory is not a static internal picture, but rather is continually constructed, embedded in our interpersonal context. It is living memory.     

The Ego and the Yid,Revisited: Commentary on Daniel Gaztambide’s “A Preferential Option for the Repressed: Psychoanalysis Through the Eyes of Liberation Theology”

In this commentary on Daniel Gaztambide’s “A Preferential Option for the Repressed: Psychoanalysis Through the Eyes of Liberation Theology” we discuss the Ego and the Y(id) to emphasize the otherness of the unconscious. In the idiom of racial anti-Semitism, the Y(id) was the personification of the feminine, the infantile, the irrational, the perverse, the primitive, and of “Blackness.” Gaztambide rightly refers to psychoanalysis’s marginal and progressive origins and to the role of Freud’s own racial identity as a Jew in producing that marginality. However, we caution against Gaztambide’s metaphorical equation of psychoanalysis and prophecy, and contend that psychoanalysis is at its best when it occupies a position of thirdness, critiquing both from within and without.     

Putting yourself in the skin of a black avatar reduces implicit racial bias

Although it has been shown that immersive virtual reality (IVR) can be used to induce illusions of ownership over a virtual body (VB), information on whether this changes implicit interpersonal attitudes is meager. Here we demonstrate that embodiment of light-skinned participants in a dark-skinned VB significantly reduced implicit racial bias against dark-skinned people, in contrast to embodiment in light-skinned, purple-skinned or with no VB. 60 females participated in this between-groups experiment, with a VB substituting their own, with full-body visuomotor synchrony, reflected also in a virtual mirror. A racial Implicit Association Test (IAT) was administered at least three days prior to the experiment, and immediately after the IVR exposure. The change from pre- to post-experience IAT scores suggests that the dark-skinned embodied condition decreased implicit racial bias more than the other conditions. Thus, embodiment may change negative interpersonal attitudes and thus represent a powerful tool for exploring such fundamental psychological and societal phenomena.